NARAYANAN, R, SINGH, RRP. (1990). FINITE-LATTICE EXPANSION FOR QUANTUM SPIN CHAINS
.
PHYSICAL REVIEW B, 42(16), 10305-10310. 10.1103/PhysRevB.42.10305
NARAYANAN, R, SINGH, RRP. (1990). FINITE-LATTICE EXPANSION FOR QUANTUM SPIN CHAINS
. PHYSICAL REVIEW B, 42(16), 10305-10310. 10.1103/PhysRevB.42.10305